Thread-winding apparatus for spinning and doubling machines.



J. F. ROTH. INDING APPARATUS FOR SPINNING AND DOUBLING MAGHINES.

THREAD W APPLICATION FILED JULY 14, 1911.

Patented June 18, 1912.

Z SHEETS-SHEET 1.

W752)? envi- COLUMBIA PLANOGRAPH 50-. WASHINGTON, n. c.

1,030,017, Patented June 18,1912.

LENGTH.

THREAD WINDING APPARATUS FOR SPINNING AND DOUBLING MACHINES.

APPLICATION FILED JULY 14, 1911.

2 SHEETS-SHEET 2.

COLUMBIA PLANOGRAPH c0, WASHINGTON, D c.

ETNTTED TATE PATENT @FFTQE.

JOHANN FRANZ BOTH, 0F BASEL, SWITZERLAND.

THBEAD-WINDING APPARATUS FOR SPINNING AND DOUBLING MACHINES.

To all whom it may concern:

Be it known that I, JOHANN FRANZ Born, a citizen of the Swiss Republic, and resident of Basel, Switzerland, have invented a new and useful Thread-VVi'nding Apparatus for Spinning and Doubling Machines, of which the following is a full, clear, and exact specification.

This invention relates to an improved thread winding apparatus for spinning and doubling machines of the kind in which the winding of the thread upon the spindle is effected by means of a revolving braked winding rim or ring capable of up and down motion. Whereas in the previously known devices of this kind the winder was braked by weighting upon a rotating car rier which effects the driving thereof, adevice which especially at high speeds renders the brake action which is desired more or less illusory, in the present invention it is provided that the braking of the winder is effected independently of the driving organ (carrier or the like) and takes place entirely in proportion to the variations of the thread tension, whereby the correct winding of the thread is insured with approximately the same tension throughout the varying winding diameter of the spool or of the cop.

According to this invention the braking of the winder is effected by means of balance like brake levers which grip it in the manner of pincers and operate in such a manner automatically in proportion to the thread tension, that on the adjustment of height of the winder which takes place through alterations of the thread tension, the brake levers are rocked within narrow limits and thereby are pressed with more or less grip against the winder. This action depends essentially upon the fact that the brake levers in their combination with the winder and a chain serving to regulate the overpressure on the side of the winder, form a horizontal balance of great sensitiveness.

In the drawing is illustrated a construction of the invention together with som modifications of details as follows:

Figure 1 is a side elevation of a row of hell spindles provided with a constructioi'i of the winding mechanism, (the bells and spindles are shown broken off). Fig. 2 is a view from below of Fig. 1 in which certain of the parts are omitted. Fig. 3 is an elevation and Fig. 4 a plan view of a modifica- Specifioation of Letters Patent.

Application filed July 14, 1911.

Patented June 13, W12.

Serial No. 638,441.

tion of the apparatus. Fig. 5 shows in plan view another form of the winder. Fig. (3 shows in side elevation, partly broken away, another modification of the improved apparatus.

According to the construction shown in Figs. 1 and 2, (0 indicates a carrier ring surrounding the spindle Z) and coaxial with it, which ring revolves with the spindle and rests on the bell 0 of which only a small piece broken off below is visible. At the upper end the carrier ring a possesses a ring flange (L This forms an upper stop for the winder (Z, which surrounds the carrier a loosely movable and can slide up anddown the same. To the winder (Z are 'attached the thread guides e. The winder (Z constructed as a light annular disk engages with its outer edge two brake shoes f each provided wit-h a groove, which shoes are secured to the ends of two brake levers 9. These latter have their pivots on the under side of the support .2 which is shown broken away in Fig. 2. Moreover these pivots g are parallel to one another in a plane intersecting the spindle axis vertically, which plane is indicated in Fig. 1 by means of adot-and-d'ash line. The pivots g aforesaid are supported on the two bearer plates 71 which are freely movable by means of a screw and a slot 71/1 on the underside of the support 2, and can also be adjusted, as regards their relative distance, by means of a rod 2' connecting the plates it, which rod is provided at one end with a left hand and at the other end with a right hand threading, whereby the distance between the two pivots 9 can be altered and exactly adjusted. The two brake levers g extend from below through the support 2 upward; they form two lever arms of equal length and their brake shoes are placed diametrically oppositeone another against the winder (Z. l The trackswhich the brake shoes of the brake levers 9 describe when the winder cl rises or descends, are indicated in Fig. 1 by arrows. It is visible from this drawing that the winder (Z placed between the brake levers becomes'free when it is raised. Further it is obvious from Fig. 1 that the winder cl held between the brake shoes f is at a distance from the plane passing through the pivots of the brake levers, which distance is many times smaller than the length of the lever arm which forms the brake lever.

In order that the two brake levers 9 may be compelled to move simultaneously, there are provided on their pivots two arms Z, which are compulsorily connected together. The ends of these arms cross each other, and the end of the one arm is formed as a socket in which the end of the other arm can move freely. The crossing point of the arms Z is in the plane which comprises the spindle axis and intersects at right angles the diameter in which the brake shoes f stand opposite each other.

From the pivot of the brake lever g which lies to the right in the drawing, there also proceeds an arm on, which forms a counter-lever for the arms Z. To this counterlever is attached one end of a chain 70, the other end of which is fastened to a shaft n and by means of which it winds or unwinds itself. In consequence of these arrangements. the aforesaid brake lever and its counterlever m can be regarded as parts of a balance, the beam of which moves upon the corresponding pivot 9 whereby the weight of the lever m and that part of the weight of the chain which is acting on the aforesaid lever, has the effect of the weight on the one side of the balance, on which on the other side of the balance there is as counterweight the weight of the right side brake lever g with its arm Z and the weight of the left side brake lever 9 together with its arm Z acting at the crossing point of the arms Z. This latter side of the balance possesses, when the chain is wound up, a relatively considerable excess weight, which is increased by the weight of the winder (Z when this latter is freely acted upon by gravity. This excess weight can be diminished by unwinding the chain 7: which acts as a regulating weight. The unwinding of the regulating chain 70 of any row of spindles takes place in common by means of a horizontal shaft 7?. which is arranged along the machine for this purpose. For the turning of the shaft a there is pro vided a self-check worm gear 0 the wheel of which is placed upon the shaft 11. and which by means of a division on the wheel and a fixed pointer allows of regulating at all times the overweight apparent on the beam of the winder, and permits of its being in? creased or diminished according to requirement and desire even during the rotation of the spindles. The vertical shaft carrying the worm of said gear 0 is designed to be manually operated.

In consequence of this excess weight which is always present even if in very small degree, which can be conveniently attained by means of the regulating chain is, the brake levers g are constantly endeavoring to cause their brake shoes to move downward, they therefore form together a kind of pincers which has constantly the endeavor to clamp themselves against the winder revolving relatively to their levers. Hereby the plates it with the entire balance like levers 9 can adjust themselves sidewise to the winder (Z, so that constantly both the brake levers 9 press against the outer rim of the winder d, an arrangement which could not easily be attained if the balance were in rigid connection with the support 2. The regulating chain 7:: does not in any way interfere with the mobility of the balance.

The thread guides e are placed upon the winder below the carrier ring flange a the requisite distance for them from this flange is given to them by aid of the rod 2' and by turning this latter the position is altered which the pivots of the two brake levers occupy and consequently the angle which the two brake levers form with the plane passing through their pivots, and simultaneously also the distance of the wind er from this plane. The thread in passing from the delivery rollers and firstly running downward is drawn under one of the thread guides e, from thence it rises to the winding ring flange a and passing over this latter it reaches, after again altering its direction, the winding point. The thread guide consequently is suspended from a thread loop.

hen the spindle is starting the brake levers 9 exercise still their braking power against the winder (Z and there is consequently the tendency to wind up the thread. Consequently the thread is put under tension and it strives to take up the thread loop which is formed at the thread guide, whereby the winder (Z tends to rise. By this motion the brake shoes f following the winder increase their distance apart and the winder (Z which is then no longer influenced by the clamping action of the brake levers arrives at the flange a which contributes to assist the thread in drawing after it the winder (l. As, however, the winder (Z on revolving does not turn mathematically exactly about its own axis, because, in order to be easily movable about the carrier ring a, it is allowed some play with regard thereto, the center of gravity in-the axis of the winding ring (Z moves in little circles around the axis of the carrier ring a. In conse quence of the centrifugal force of the center of gravity thus produced influencing the winder,the friction arising at the periphery of the carrier ring (6 increases to such an extent that the winder (Z vigorously strives to overtake the carrier ring a. The rotating winder (Z consequently strives at each moment to overtake the spindle and hereby to.

interrupt the winding up of the thread.

At the speeds of revolution which come into consideration in spinning or doubling for the winder d it will further be seen that the momentum obliges the winder to take a position in which its axis approximately 00- incides with the axis of the carrier ring a or is parallel to it and not one which forms a sensible angle therewith. The little oscillations of the winder are therefore unimportant at this speed of rotation and in just this position in which it is easily movable up and down the carrier ring a, the winder remains although thread tension strives to disturb it therefrom. As, however, the weight of the winder (Z and the brake levers g is constantly striving to draw it down ward, whereby much more thread would be unwound than the delivery rolls supply, the thread is obliged by its tension on the winder so to regulate the clamping action of the brake levers 9, that the winder although striving in its rotation at every moment to overtake the spindles, is constantly checked, without being absolutely held fast between the brake levers, and this pull corresponds to the force which is necessary, in order to be able to raise the weight which brings the balance into equilibrium or to cancel the surplus weight on the one side of the balance. This weight influences the tension of the thread both whether it leaves the delivery rollers and also whether it reaches the winder. As, however, the thread first experiences a checking at the thread guide 6 and then at the carrier ring flange (4 the part of the thread just passing from the delivery rolls is partly relieved of the winding tension. Its amount of tension is exactly de termined by the weight acting on the aforesaid thread loop, of which it has to bear one half. The amount of tension remains therefore invariable, whether the thread is wound upon the bare spindle, or upon a larger di ameter. The weight serving to determine the thread tension can be regulated according to every need for the threads of every spindle row in common without loss of time and at any time, that is even during the running of the spindles, by means of the balances placed in connection with the winding organs and the regulating weights formed by the chains is upon the shaft n.

A. modification of the balance and of the winder is shown in Figs. 3 and t of which Fig. 3 shows the elevation and Fig. 4 the plan. In place of the bearing plates it there is arranged a stirrup p. The winder cl is placed below the plane passing through the pivots of the brake levers g, which plane is indicated by a dot-and-dash line. The brake levers 9 cross each other here; they undertake also the service of the connecting arms Z of the previous construction, because they engage one with the other at 7", whereby the one brake lever is so bent that it forms a loop, through which the other brake lever passes. The regulating chain 71: is suspended from the counterlever m The disk shaped brake shoes f grip the winder d in grooves. The direction of the tracks which the brake shoes f describe on the rise or descent of the winder are indicated here also in Fig. 3 by means of arrows. From this figure it will be seen that the brake shoes f move away from the winder when the latter rises. In order that the balance can be adjustable according to the winder, as is indicated in Fig. 4.- on an exaggerated scale, it or the stirrup p is made to turn about the pivot On the turning of the rod 2' provided at one end with a left hand and at the other end with a right hand threading, the side arms of the stirrup p in which the bar 71 is screwed alter their parallel direction whereby the inclination of the brake levers resting against the winder alters with regard to the plane passing through the pivots g thereof.

In the modification of the winder (Z illustrated in Figs. 3 and 4 there is on this latter a ring 8 attached for the purpose of stiffening it; on this ring are placed the thread guides c.

Fig. 5 shows in plan view a modification of the winder which is in the form of a sleeve. This winder (Z is provided with a groove in which the brake levers g of a regulating balance of the kind illustrated. in Figs. 1 and 2 engage.

In Fig. 6 there is illustrated (partly broken away) a winder of similar kind; in this figure it is associated to a carrier ring a and with this latter to the flier u of a fly spindle o.

The brake lovers 9 which form the part of a regulating balance in the manner illustrated already in Figs. 3 and l, and the pivots of which are indicated at g approach the winder (Z whenever the latter moves downward as may be seen from the arrows indicating the direction of motion of the brake levers. The brake levers have in this case no special brake shoes but they distribute the braking directly over the winder ring. Moreover in Fig. 6 the end piece of the shaft n is shown which serves for winding in or out the regulating chains. This shaft has an outer threading 20 which engages with an inner threading of a fixed part e0 and on turning the shaft shifts the latter in the axial direction according to the breadth of chain so that the chain windings come to lie regularly one against another on the shaft '21.

What I claim is:

1. In a thread winding apparatus for spinning and doubling machines, the combination of a revolving winding ring capable of up and down motion under alterations of the thread tension, means on said winding ring for guiding the thread and horizontally balancing brake levers adapted to grip said winding ring like pincers, in such a manner that on the adjustment of the height of the winding ring resulting from the alteration of the thread tension, the brake levers are rocked within narrow limits so as to brake the winding ring with more or less strong gripping pressure.

2. In a thread winding apparatus for spinning and doubling machines, the combination of a revolving winding ring capable of up and down motion under alterations of the thread tension, means on said winding ring for guiding the thread, horizontally balancing brake levers adapted to grip said winding ring like pincers for the purpose of braking said winding ring more or less strongly in conformity with its up and down motion resulting from the alteration of the thread tension, and means to allow said brake lovers of adjusting themselves sidewise to the winding ring.

3. In a thread winding apparatus for spinning and doubling machines, the combination of a carrier ring, a revolving winding ring capable of up and down motion thereon, means on said winding ring for guiding the thread, horizontally balancing brake levers adapted to grip said winding ring like pincers for the purpose of braking said winding ring more or less strongly in conformity with its up and down motion resulting from the alteration of the thread tension, movable bearings for said brake levers and adjusting means interconnecting said bearings for the purpose of altering, by means of the brake levers, the position of the winding ring relatively to the carrier ring in the axial direction thereof.

4. In a thread winding apparatus for spinning and doubling machines, the combination of a revolving winding ring capable of up and down motion under alterations of the thread tension, means on said winding ring for guiding the thread and horizontally balancing brake levers adapted to grip said winding ring for the purpose of braking said winding ring more or less strongly in conformity with its up and down motion resulting from the alteration of the thread tension, and a regulable counterweight for adjusting the weight relations on the brake lever system.

5. In a thread winding apparatus for spinning and doubling machines, the combination of a revolving winding ring capable of up and down motion, means on said winding ring for guiding the thread and horizontally balancing brake levers adapted to grip said winding ring for the purpose of braking said winding ring more or less strongly in conformity with its up and down motion resulting from the alteration of the thread tension, a counterweight arm connected with one of said brake levers, a weighting chain connected by one of its ends to said counterweight arm and by the other to a rotatable shaft, and means adapted for turning said shaft in order to wind the chain up and from said shaft.

In witness whereof I have hereunto signed my name this 3d day of July 1911, in the presence of two subscribing witnesses.

J OHANN FRANZ ROTH.

lVitnesses GEO. Grrronn, AMAND BITTER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C." 

